/*
 * Copyright 2007 Rob Nielsen
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * 	http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.googlecode.proxymatic.core.engine;

import com.googlecode.proxymatic.core.ProxyConfiguration;
import com.googlecode.proxymatic.core.ProxyEngine;

import java.io.Serializable;
import java.lang.reflect.InvocationHandler;
import java.lang.reflect.Proxy;

public class JavaProxyEngine implements ProxyEngine, Serializable {
    public Object createProxy(ProxyConfiguration proxyConfiguration) {
        JavaProxyInvocationHandler invocationHandler = new JavaProxyInvocationHandler(proxyConfiguration);
        Class[] targetInterfaces = proxyConfiguration.getRuntimeContext().getBuildtimeContext().getTargetInterfacesArray();
        return Proxy.newProxyInstance(getClass().getClassLoader(), targetInterfaces, invocationHandler);
    }

    public ProxyConfiguration getProxyConfiguration(Object targetObject) {
        if (Proxy.isProxyClass(targetObject.getClass())) {
            InvocationHandler handler = Proxy.getInvocationHandler(targetObject);
            if (handler instanceof JavaProxyInvocationHandler) {
                JavaProxyInvocationHandler javaProxyInvocationHandler = (JavaProxyInvocationHandler) handler;
                return javaProxyInvocationHandler.getProxyConfiguration();
            }
        }
        return null;
    }
}
